Security is your responsibility first.
It depends on what you do, where you go, who you are friends with.
This page has the links/tools to do a basic background check on a person.
Take a free test to assess your likelihood of Rape, Robbery or Murder.
RateYourRisk.org Evaluate Risks in Your Life
Maryland has the Judiciary Case Search. Look up criminal, civil and traffic issues. Maryland Judiciary Case Search
Simple things can be done to make a home harder to break into
As simple as longer 3-inch screws for all outside facing doors. Landscaping away from home and that does not offer hiding areas. Home Security Checklist
Checking the local Police precinct online will tell you where and what crime is taking place.